The quickest way to construct a tower roof is to build it on the ground and lift it with a crane

JLC ??MAY 1991
I've spent most of my framing career in the
high-end southern California building market,
and I've often been called on to frame
conical tower roofs. There are many ways to
go about the job. Which framing method I
choose depends most on the type of material
— either beam stock or 2x — that's called
for. In this article, I'll describe one method
that I use with 2x lumber to form a conical
roof with a vaulted interior ceiling.
Starting Out Round
The quickest way to construct any tower
roof is to build it on the ground and lift it into
place with a crane. But to make this work, the
walls